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Cleaning compositions and methods of treating equipment

  • US 20050202989A1
  • Filed: 05/06/2005
  • Published: 09/15/2005
  • Est. Priority Date: 05/30/2002
  • Status: Active Grant
First Claim
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1. A method of treating equipment, comprising the step of applying a basic, aqueous cleaning composition to equipment, wherein the equipment includes that from at least one of the following industries:

  • asphalt industry, bituminous, and oil field, and wherein the cleaning composition consists essentially of;

    about 0.1% to about 99% by weight of an alkali, wherein the alkali is chosen from at least one of the following;

    sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, cesium hydroxide, monoethylamine, diethylamine, triethylamine, monomethylamine, dimethylamine, trimethylamine, isopropylamine, diisopropylamine, isoprapanolamine, diisopropanolamine, triisopropanolamine, monoethanol amine, diethanolamine, triethanolamine, ammonium hydroxide, sodium aluminate, potassium aluminate, calcium oxide, magnesium oxide, cesium oxide, sodium metasilicate, monosodium phosphate, disodium phosphate, trisodium phosphate, sodium tripolyphosphate, sodium sulfate, sodium borate, sodium carbonate, sodium hydrogen carbonate, sodium sesquicarbonate, sodium orthosilicate, sodium sesquisilicate, sodium polysilicates, alkaline sodium silicate, neutral sodium silicate, and combinations thereof.

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